KALISPELL WSO AIRPORT, MONTANA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 28.2 35.0 43.4 55.2 64.2 71.4 80.1 79.4 67.7 54.4 38.3 29.9 53.9
Highest Mean Max. Temperature (F) 35.5 40.8 51.1 62.4 68.8 78.7 88.5 87.7 79.0 62.2 43.0 38.9 57.2
Year Highest Occurred 1983 1983 1986 1977 1985 1961 1985 1967 1990 1988 1990 1979 1988
Lowest Mean Max. Temperature (F) 10.0 23.6 35.7 49.3 58.7 64.5 73.8 70.8 54.7 49.2 23.7 16.9 50.4
Year Lowest Occurred 1979 1989 1965 1975 1978 1981 1983 1964 1965 1969 1985 1983 1985
Mean Temperature (F) 20.5 26.6 33.7 43.2 51.3 57.8 63.6 62.9 53.2 41.9 31.0 22.7 42.4
Highest Mean Temperature (F) 29.7 33.6 40.3 48.6 54.8 64.3 68.5 67.9 59.8 48.5 35.7 32.2 45.1
Year Highest Occurred 1981 1961 1986 1987 1987 1986 1985 1986 1990 1988 1989 1979 1988
Lowest Mean Temperature (F) -0.2 13.8 24.5 38.9 48.1 53.2 60.2 57.0 44.6 38.5 16.8 7.9 39.0
Year Lowest Occurred 1979 1989 1965 1975 1965 1971 1986 1964 1965 1984 1985 1983 1985
Mean Min. Temperature (F) 12.7 18.1 23.9 31.1 38.4 44.1 47.1 46.3 38.6 29.4 23.7 15.5 30.7
Highest Mean Min. Temperature (F) 25.9 27.4 29.6 35.1 41.7 50.7 52.0 50.4 43.0 34.7 29.4 25.4 33.0
Year Highest Occurred 1981 1961 1988 1988 1987 1986 1990 1990 1963 1988 1989 1979 1986
Lowest Mean Min. Temperature (F) -10.4 4.0 13.3 27.1 34.4 40.4 42.5 39.6 33.6 24.2 9.9 -1.1 27.6
Year Lowest Occurred 1979 1989 1965 1968 1965 1971 1969 1969 1971 1974 1985 1983 1985
Mean Precipitation (in.) 1.53 1.10 1.02 1.10 1.87 2.21 1.12 1.40 1.26 0.87 1.30 1.73 16.51
Highest Precipitation (in.) 3.11 1.99 2.96 2.37 4.75 4.72 3.98 3.78 3.97 2.07 3.26 4.38 23.93
Year Highest Occurred 1970 1981 1987 1978 1990 1966 1987 1976 1985 1990 1989 1990 1990
Lowest Precipitation (in.) 0.20 0.42 0.31 0.26 0.68 0.43 0.05 0.01 0.01 0.05 0.26 0.52 11.22
Year Lowest Occurred 1985 1967 1965 1968 1969 1977 1973 1967 1990 1987 1969 1986 1967
Heating Degree Days (F) 1380. 1075. 970. 654. 425. 235. 97. 128. 367. 716. 1020. 1311. 8378.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 19. 54. 63. 13. 0. 0. 0. 149.

Western Regional Climate Center, wrcc@dri.edu